// 颜色变量
$primary-color: #3b82f6;
$primary-light: #93c5fd;
$primary-dark: #1d4ed8;
$secondary-color: #10b981;
$secondary-light: #6ee7b7;
$secondary-dark: #047857;
$success-color: #22c55e;
$warning-color: #f59e0b;
$danger-color: #ef4444;
$info-color: #3b82f6;

// 中性色
$black: #111827;
$gray-900: #1f2937;
$gray-800: #374151;
$gray-700: #4b5563;
$gray-600: #6b7280;
$gray-500: #9ca3af;
$gray-400: #d1d5db;
$gray-300: #e5e7eb;
$gray-200: #f3f4f6;
$gray-100: #f9fafb;
$white: #ffffff;

// 背景色
$bg-primary: #ffffff;
$bg-secondary: #f9fafb;
$bg-tertiary: #f3f4f6;

// 文本色
$text-primary: #111827;
$text-secondary: #4b5563;
$text-tertiary: #9ca3af;
$text-light: #ffffff;

// 布局尺寸
$header-height: 60px;
$sidebar-width: 300px;
$content-width: 1200px;
$footer-height: 120px;

// 间距
$space-1: 4px;
$space-2: 8px;
$space-3: 12px;
$space-4: 16px;
$space-5: 24px;
$space-6: 32px;
$space-7: 48px;
$space-8: 64px;

// 阴影
$shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
$shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
$shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
$shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

// 圆角
$radius-sm: 0.125rem;
$radius-md: 0.375rem;
$radius-lg: 0.5rem;
$radius-xl: 0.75rem;
$radius-2xl: 1rem;
$radius-full: 9999px;

// 字体系列
$font-sans: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
$font-serif: Georgia, Cambria, "Times New Roman", Times, serif;
$font-mono: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

// 字体大小
$text-xs: 0.75rem;
$text-sm: 0.875rem;
$text-base: 1rem;
$text-lg: 1.125rem;
$text-xl: 1.25rem;
$text-2xl: 1.5rem;
$text-3xl: 1.875rem;
$text-4xl: 2.25rem;

// 字体粗细
$font-thin: 100;
$font-extralight: 200;
$font-light: 300;
$font-normal: 400;
$font-medium: 500;
$font-semibold: 600;
$font-bold: 700;
$font-extrabold: 800;
$font-black: 900;

// z-index
$z-0: 0;
$z-10: 10;
$z-20: 20;
$z-30: 30;
$z-40: 40;
$z-50: 50;
$z-auto: auto;

// 过渡时间
$transition-fast: 150ms;
$transition-normal: 300ms;
$transition-slow: 500ms;

// 断点
$breakpoint-sm: 640px;
$breakpoint-md: 768px;
$breakpoint-lg: 1024px;
$breakpoint-xl: 1280px;
$breakpoint-2xl: 1536px; 